U.S. Patent No. 4,734,690 mentions a "method and apparatus for spherical panning," which describes a system for moving representation of objects in 3D and projecting the results onto a 2D plane (such as a screen of a TV or monitor), allowing the user to move their perspective around the model and zoom in/out.

Essentially, any developer that used 3D graphics is implicated with this lawsuit, and would potentially require a license for the patent for most 3D games created.